Abstract:In this paper, a simplified model of corona discharge for finite-difference time-domain (FDTD) computations has been applied to analyzing lightning surges propagating along a 25 or 21 mm radius, 2.2 km long single overhead horizontal wire, which simulates the experiment of Wagner et al. [1954]. The critical electric field on the surface of the 25 mm radius wire for corona initiation is set to E 0 =1.3, 2.1 or 2.5 MV/m, and E 0 =2.2 MV/m for 21 mm radius wire. The critical background electric field for streamer… Show more
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